Question

A single gene that controls the expression of more than one trait is said to show:

• A. Multiple allelism
• B. Polygenic inheritance
• C. Incomplete dominance
• D. Pleiotropism

Hint:

Pleiotropic genes demonstrate how a single mutation can have widespread effects on an organism's phenotype.

Answer 1

The Correct Option is D

A single gene impacting several observable characteristics is known as pleiotropy. For instance, the gene causing sickle-cell anemia impacts both red blood cell morphology and how effectively oxygen is carried.